A dashboard will then display the "performance" of all your recent tweets.

There is a sense on Twitter that because your Home timeline feed is moving so fast, tweets have a "life" of just a few minutes and hardly anyone sees them unless you're lucky enough to get retweeted by a very famous person.

Sometimes, tweeting is like gazing into the abyss, as Nietzsche may have said. With Twitter Analytics, you can now find out whether the abyss is retweeting you.

Here's a look at my dashboard.

About 232,000 people saw my tweets in the past four weeks — not bad!

This tweet was one of my biggest hits:

The tweet featured a link to a story about a young man who had been barred from Google's AdSense program. About 8,000 people saw it, and 162 "engaged" with it (by retweeting or favoriting) giving me an engagement rate of 2%. Two percent is actually pretty high for engagement on Twitter, it turns out.

The point here, of course, is not that making fun of Americans who don't recognize Kate Bush is the way to go on Twitter. Really, it's about finding out the real reasons that your followers find you interesting, and how that compares with your perception of yourself.

And that is why Twitter Analytics is so compelling: It's like seeing yourself in a brutal social media vanity mirror. Sometimes hideous, sometimes not so bad ... but you cannot look away.